Hardness detection device

Abstract

The utility model provides a hardness detection device and relates to the technical field of battery assembly. The placement platform is provided with a placement plane, the placement plane is used for bearing a to-be-detected object, the bearing assembly can support or release the detection assembly, so that the detection assembly is located outside the to-be-detected object or a part of the detection assembly is inserted into the to-be-detected object, and the detection assembly can detect the insertion depth of the detection assembly into the to-be-detected object. Before detection, the to-be-detected object is arranged on the placement plane, and the bearing assembly supports the detection assembly, so that the detection assembly is located outside the to-be-detected object. During detection, the bearing assembly releases the detection assembly, the detection assembly is inserted into the adhesive layer, and the hardness of the adhesive layer can be indirectly fed back through the depth, detected by the detection assembly, of the detection assembly inserted into the adhesive layer of the to-be-detected object and the force applied by the detection assembly to the to-be-detected object. The hardness of the adhesive layer can be detected only by controlling the bearing assembly to release the to-be-detected piece, so that the hardness detection operation is simplified, and the hardness detection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery assembly, and in particular to a hardness detection device. Background Art

[0002] During the battery module molding process, the liquid cooling plate and the sides of the cell modules in the battery module stack are fixed and extruded using AB mixed glue. The hardness of the AB mixed glue changes with the static time, and the hardness of the AB mixed glue directly reflects the reliability of the bonding between the liquid cooling plate and the cell. By testing the hardness of the AB mixed glue after a certain static time, it can be determined whether the static time meets the process requirements. However, the overall size of the battery module is relatively large, and existing hardness testing equipment is not convenient for testing the hardness of the AB mixed glue on the battery module. Utility Model Content

[0003] In view of this, the present application provides a hardness testing device to solve the problem that it is inconvenient for existing hardness testing equipment to test the hardness of AB mixed glue on the battery module.

[0004] The present application provides a hardness testing device, which includes a supporting component, a testing component and a placement platform. The placement platform has a placement plane, which is used to support the object to be tested. The supporting component can support or release the testing component so that the testing component is suspended in the air or inserted into the interior of the object to be tested. The testing component can detect the depth to which the testing component is inserted into the object to be tested.

[0005] Preferably, the supporting component includes a moving part and a supporting part, the supporting part is fixed to the moving part, the supporting part is used to support the detection component, and the moving part can drive the supporting part to move so that the detection component is located outside the object to be detected or part of the detection component is inserted into the interior of the object to be detected.

[0006] Preferably, the hardness testing device further comprises a fixing assembly, the movable member is capable of moving along the direction of gravity on the fixing assembly, and the distance that the movable member can move in the direction of gravity is a first distance;

[0007] When the supporting assembly supports the detecting assembly, the distance between the detecting assembly and the object to be detected is a second distance, and the first distance is greater than the second distance.

[0008] Preferably, the detection assembly includes a connecting mechanism and a detection member, the detection member is fixed to the bottom of the connecting mechanism, and the supporting member can support the connecting mechanism or be separated from the connecting mechanism.

[0009] Preferably, the supporting assembly further comprises a sleeve, and the sleeve is fixed to the lower end of the supporting member in the direction of gravity;

[0010] The connecting mechanism includes an abutment member and a connecting rod, the abutment member is connected to the connecting rod, and the connecting rod passes through the sleeve.

[0011] Preferably, the detection assembly further comprises a counterweight, and the counterweight is fixed to an end of the connecting mechanism facing away from the detection member.

[0012] Preferably, the detection assembly further comprises a support member, the support member is fixed on the counterweight member, and the support member extends along the direction of gravity;

[0013] When the supporting component supports the detection component, the supporting member abuts against the supporting member;

[0014] When the supporting component releases the detecting component, the supporting member is separated from the supporting component.

[0015] Preferably, the supporting assembly further includes a guide member, the guide member is connected to the movable member, the guide member includes a guide hole, the guide hole passes through the guide member along the direction of gravity, and a portion of the support member is located in the guide hole.

[0016] Preferably, the fixing assembly includes a fixing plate and a slide rail, the slide rail is fixed to the fixing plate, the slide rail extends along the direction of gravity, and the moving member is arranged on the slide rail;

[0017] The hardness detection device further includes a first driving mechanism connected to the moving member, and the first driving mechanism drives the moving member to move along the slide rail.

[0018] Preferably, the hardness testing device further comprises a second driving mechanism, wherein the second driving mechanism is connected to the placement platform to drive the placement platform to move along a predetermined direction, wherein the predetermined direction is parallel to the placement plane.

[0019] Preferably, the movable member includes a slider and a connecting member, the slider is arranged on the slide rail, the connecting member extends relative to the slider in a direction away from the fixed plate, a fixing hole is provided on the connecting member, the supporting member is arranged above the connecting member, and the sleeve extends into the fixing hole.

[0020] Preferably, the hardness detection device further comprises a mounting rod and a mounting shell, the mounting rod supports the mounting shell, and the fixing assembly is fixed on the mounting shell.

[0021] Preferably, the second driving mechanism includes a motor, a screw and a nut, the motor is fixed on the outside of the mounting shell, the screw is arranged inside the mounting shell, the screw is connected to the motor so that the motor can drive the screw to rotate, the nut is arranged on the screw, and the nut is connected to the placement platform.

[0022] Preferably, the second driving mechanism further includes a moving block and a guide rail, the moving block is connected to the nut, and the moving block is arranged on the guide rail.

[0023] Before using the hardness testing device of the present application to perform a hardness test, the object to be tested is placed on a placement plane, and the supporting assembly supports the testing assembly so that the testing assembly is located outside the object to be tested. When the hardness testing device is used to perform a hardness test, the supporting assembly releases the testing assembly, and the testing assembly is inserted into the adhesive layer of the object to be tested. The force applied by the testing assembly to the object to be tested is the gravity of the testing assembly itself. The depth of insertion into the adhesive layer of the object to be tested detected by the testing assembly and the force applied by the testing assembly to the object to be tested can indirectly provide feedback on the hardness of the adhesive layer. In this way, the hardness of the adhesive layer can be tested by simply controlling the supporting assembly to release the object to be tested, which simplifies the operation of the hardness test and improves the efficiency of the hardness test. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram showing a hardness testing device according to an embodiment of the present invention;

[0026] Figure 2 A diagram showing the relative positions of the supporting assembly, the detection assembly, and the fixing assembly;

[0027] Figure 3 A diagram showing the relative positions of the supporting assembly and the fixing assembly;

[0028] Figure 4 A schematic diagram showing the structure of the detection component.

[0029] Icons: 1-supporting assembly; 11-moving part; 111-slider; 112-connecting part; 12-supporting part; 121-limiting hole; 13-sleeve; 14-guide part; 141-guide hole; 2-detection assembly; 21-connecting mechanism; 211-abutment part; 212-connecting rod; 22-detection part; 23-counterweight part; 24-support part; 25-nut; 3-placement platform; 4-fixing assembly; 41-fixing plate; 42-support leg; 43-slide rail; 5-first driving mechanism; 6-guide rail; 7-mounting rod; 8-mounting shell; 9-second driving mechanism. DETAILED DESCRIPTION

[0030] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0031] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0032] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements intervening therebetween.

[0033] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0034] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, component, region, layer, or portion in the examples described herein may also be referred to as a second member, component, region, layer, or portion without departing from the teachings of the examples.

[0035] For ease of description, spatial relational terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element would subsequently be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations "above" and "below," depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0036] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0037] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0038] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0039] This application provides a hardness testing device, such as Figures 1 to 4As shown, the hardness testing device includes a supporting component 1, a testing component 2 and a placement platform 3. The upper plane of the placement platform 3 is a placement plane. The placement plane is used to carry the object to be tested. The supporting component 1 can support or release the testing component 2 so that the testing component 2 is located outside the object to be tested or part of the testing component 2 is inserted into the interior of the object to be tested. The testing component 2 can detect the depth of the testing component 2 inserted into the object to be tested. Before using the hardness testing device of the present application to perform a hardness test, the object to be tested is set on the placement plane. The supporting component 1 supports the testing component 2 so that the testing component 2 is located outside the object to be tested. When the hardness testing device performs a hardness test, the supporting component 1 releases the testing component 2, and the testing component 2 is inserted into the adhesive layer of the object to be tested. The force applied by the testing component 2 to the object to be tested is the weight of the testing component 2 itself. The depth of insertion into the adhesive layer of the object to be tested detected by the testing component 2 and the force applied by the testing component 2 to the object to be tested can indirectly feedback the hardness of the adhesive layer. In this way, the hardness of the adhesive layer can be tested by only controlling the supporting component 1 to release the part to be tested 22, which simplifies the operation of the hardness test and improves the efficiency of the hardness test.

[0040] It should be noted that there are two situations in which the detection component 2 is located outside the object to be detected. The first situation is that the supporting component 1 supports the detection component 2 so that the detection component 2 is suspended relative to the object to be detected. At this time, the detection component 2 is not in contact with the object to be detected; the second situation is that the detection component 2 is in contact with the upper surface of the object to be detected, and at the same time, the supporting component 1 supports the detection component 2 so that the detection component 2 does not exert force on the object to be detected.

[0041] In the embodiments of the present application, Figure 1 and Figure 2 As shown, the supporting assembly 1 includes a moving member 11 and a supporting member 12. The supporting member 12 is fixed to the moving member 11 and is used to support the detection assembly 2. The moving member 11 can drive the supporting member 12 to move to support or release the detection assembly 2. In this way, the supporting assembly can be released by the moving member 11 driving the movement of the supporting member 12, thereby realizing the hardness detection of the adhesive layer.

[0042] Furthermore, the hardness testing device also includes a fixing assembly 4, which includes a fixing plate 41 and two support legs 42. The two support plates are respectively arranged on both sides of the fixing plate 41 to support the fixing plate 41. The moving member 11 is slidably connected to the fixing plate 41 so that the moving member 11 can move relative to the fixing plate 41 in the direction of gravity.

[0043] Alternatively, as Figure 3As shown, the fixed assembly 4 also includes a slide rail 43, which is fixed to the fixed plate 41 and extends in the direction of gravity. The movable member 11 is arranged on the slide rail 43. The hardness detection device also includes a first driving mechanism 5, which is connected to the movable member 11 to drive the movable member 11 to move along the slide rail 43. In this way, by providing the slide rail 43, it is possible to ensure that the movable member 11 moves in the direction of gravity. The first driving mechanism 5 can be an electric telescopic rod or a cylinder, and the first detection mechanism can be extended and retracted in the direction of gravity to drive the movable member 11 to move along the slide rail 43.

[0044] Furthermore, the distance that the moving member 11 can move in the direction of gravity is a first distance, that is, the distance that the moving member 11 moves when moving from the upper end of the slide rail 43 to the lower end of the slide rail 43 is the first distance; when the supporting assembly 1 supports the detection assembly 2, the distance between the detection assembly 2 and the object to be detected is a second distance, and the first distance is greater than the second distance. In this way, when the moving member 11 moves downward, the supporting member 12 and the detection assembly 2 move downward accordingly. After the detection assembly 2 contacts the surface, the moving member 11 drives the supporting member 12 to continue moving downward. The supporting member 12 no longer supports the detection assembly 2. Only the detection assembly 2 itself applies force to the rubber layer, which can ensure the accuracy of the hardness test.

[0045] like Figure 2 and Figure 3 As shown, the movable member 11 includes a slider 111 and a connecting member 112. The slider 111 is arranged on the slide rail 43. The connecting member 112 is in the shape of a rectangular parallelepiped. The connecting member 112 extends relative to the slider 111 in a direction away from the fixed plate 41. A fixing hole is provided on the connecting member 112. The supporting assembly 1 also includes a sleeve 13. The supporting member 12 and the sleeve 13 are integrally formed. The supporting member 12 is provided with a limiting hole 121. The limiting hole 121 is connected to the interior of the sleeve 13. The sleeve 13 extends into the fixing hole on the connecting member 112. The supporting member 12 is arranged above the connecting member 112 and is fixed to the connecting member 112 by bolts. The sleeve 13 can limit the connecting rod 212 in the detection assembly 2 described below.

[0046] In the embodiments of the present application, Figure 2 and Figure 4 As shown, the detection assembly 2 includes a connecting mechanism 21 and a detection member 22. The detection member 22 is fixed to the bottom of the connecting mechanism 21. When the supporting assembly 1 supports the detection assembly 2, the supporting member 12 supports the connecting mechanism 21. When the supporting assembly 1 and the detection assembly 2 are separated, the supporting member 12 is separated from the connecting mechanism 21. Optionally, the detection member 22 is a Shore hardness tester that can detect the depth of its insertion into the object to be tested.

[0047] Furthermore, the connecting mechanism 21 includes an abutment 211 and a connecting rod 212. The volume of the abutment 211 is greater than the volume of the limiting hole 121, so that the supporting member 12 can support the abutment 211. The abutment 211 is connected to the connecting rod 212, and the connecting rod 212 passes through the sleeve 13, which enables the sleeve 13 to limit the connecting rod 212 to prevent the connecting rod 212 from tipping over when the detection member 22 is inserted into the interior of the object to be detected. During the process of the moving member 11 driving the supporting member 12 to move upward, after the supporting member 12 contacts the abutment 211, the supporting member 12 drives the abutment 211 to continue to move upward so that the detection member 22 is separated from the object to be detected 22.

[0048] In the embodiments of the present application, Figure 2 and Figure 4 As shown, the detection assembly 2 also includes a counterweight 23, which is fixed to the end of the connecting mechanism 21 facing away from the detection member 22. The upper end of the connecting rod 212 can be provided with a thread, and the counterweight 23 is passed through the connecting rod 212. The ends of the counterweight 23 are restrained by two nuts 25, thereby securing the counterweight 23. In this way, by providing counterweights 23 of different weights, the detection requirements of different thicknesses of adhesive layers can be met.

[0049] Optionally, the counterweight 23 may be a weight.

[0050] Further, if Figure 4 As shown, the detection component 2 also includes a support member 24, which is rod-shaped and fixed on the counterweight 23. The support member 24 extends along the direction of gravity; when the supporting component 1 supports the detection component 2, the support member 24 abuts against the supporting member 12; when the supporting component 1 releases the detection component 2, the support member 24 separates from the supporting member 12, and the gravity of the counterweight 23 is all applied to the object to be detected, thereby ensuring the accuracy of the hardness test.

[0051] like Figure 3 As shown, the support assembly 1 further includes a guide member 14, which is connected to the connecting member 112. The guide member 14 includes a guide hole 141, which extends through the guide member 14 in the direction of gravity. The support member 24 is partially located within the guide hole 141. When the support assembly 1 supports the detection assembly 2, the support member 24 passes through the guide hole 141 and abuts against the connecting plate. When the support assembly 1 releases the detection assembly 2, the support member 24 moves within the guide hole 141 in the direction of gravity.

[0052] Optionally, the supporting component 1 is not limited to the above-mentioned form. For example, the supporting component 1 can be a clamp. When the supporting component 1 supports the detection component 2, the clamp is tightened to support the detection component 2; when the supporting component 1 releases the detection component 2, the clamp opens, causing the detection component 2 to fall.

[0053] In the embodiments of the present application, Figure 1 As shown, the hardness testing device also includes a second drive mechanism 9, which is connected to the placement platform 3 to drive the placement platform 3 to move in a predetermined direction parallel to the placement plane. The second drive mechanism 9 can drive the placement platform 3 to move below the testing assembly 2 to facilitate hardness testing.

[0054] Furthermore, the hardness testing mechanism includes a mounting rod 7 and a mounting housing 8. The mounting rod 7 supports the mounting housing 8, and two support legs 42 are fixed to either side of the mounting housing 8. A second drive mechanism 9 may include a motor, a lead screw, a nut, and a moving block. The motor is fixed to the outside of the mounting housing 8, and the lead screw is disposed inside the mounting housing 8. The lead screw is connected to the motor so that the motor can drive the lead screw to rotate. The nut is disposed on the lead screw, the nut is connected to the placement platform 3, and the moving block is connected to the nut. The hardness testing device also includes a guide rail 6, the moving block is disposed on the guide rail 6, and the guide rail 6 is fixed to the inner side wall of the mounting housing 8. The guide rail 6 extends in the same direction as the lead screw. When the motor is operating, the lead screw rotates, allowing the nut to drive the moving block to move on the guide rail 6, thereby driving the placement platform 3 to move. When the moving block is located at an end away from the detection assembly 2, the placement platform 3 can serve as a glue dispensing platform. In this way, after glue dispensing is completed, the second drive mechanism 9 can drive the placement platform 3 to move below the detection assembly 2, where it can rest for a period of time before directly performing hardness testing, thereby improving the efficiency of hardness testing.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hardness testing device, characterized in that: The hardness testing device comprises a supporting component (1), a testing component (2) and a placement platform (3); the placement platform (3) has a placement plane, the placement plane is used to carry the object to be tested; the supporting component (1) can support or release the testing component (2) so that the testing component (2) is located outside the object to be tested or a portion of the testing component (2) is inserted into the object to be tested; and the testing component (2) can detect the depth of the testing component (2) inserted into the object to be tested.

2. The hardness testing device according to claim 1, characterized in that: The supporting component (1) comprises a moving part (11) and a supporting part (12), wherein the supporting part (12) is fixed to the moving part (11), and the supporting part (12) is used to support the detection component (2), and the moving part (11) can drive the supporting part (12) to move so as to support or release the detection component (2).

3. The hardness testing device according to claim 2, characterized in that: The hardness detection device further comprises a fixed component (4), the movable member (11) is movable on the fixed component (4) along a gravity direction, and the movable member (11) is movable a first distance in the gravity direction; When the supporting component (1) supports the detection component (2), the distance between the detection component (2) and the object to be detected is a second distance, and the first distance is greater than the second distance.

4. The hardness testing device according to claim 3, characterized in that: The detection assembly (2) comprises a connecting mechanism (21) and a detection member (22), wherein the detection member (22) is fixed to the bottom of the connecting mechanism (21), and the supporting member (12) is capable of supporting the connecting mechanism (21) or being separated from the connecting mechanism (21).

5. The hardness testing device according to claim 4, characterized in that: The supporting assembly (1) further comprises a sleeve (13), wherein the sleeve (13) is fixed to the lower end of the supporting member (12) in the direction of gravity; The connecting mechanism (21) comprises an abutment member (211) and a connecting rod (212), wherein the abutment member (211) is connected to the connecting rod (212), and the connecting rod (212) passes through the sleeve (13).

6. The hardness testing device according to claim 4, characterized in that: The detection assembly (2) further comprises a counterweight (23), wherein the counterweight (23) is fixed to an end of the connecting mechanism (21) facing away from the detection member (22).

7. The hardness testing device according to claim 6, characterized in that: The detection assembly (2) further comprises a support member (24), wherein the support member (24) is fixed on the counterweight member (23), and the support member (24) extends along the direction of gravity; When the supporting component (1) supports the detection component (2), the supporting member (24) abuts against the supporting member (12); When the supporting component (1) releases the detection component (2), the support member (24) is separated from the supporting component (12).

8. The hardness testing device according to claim 7, characterized in that: The supporting assembly (1) further comprises a guide member (14), wherein the guide member (14) is connected to the movable member (11), and the guide member (14) comprises a guide hole (141), wherein the guide hole (141) passes through the guide member (14) along the direction of gravity, and a portion of the support member (24) is located in the guide hole (141).

9. The hardness testing device according to claim 5, characterized in that: The fixing assembly (4) comprises a fixing plate (41) and a slide rail (43), wherein the slide rail (43) is fixed on the fixing plate (41), the slide rail (43) extends along the direction of gravity, and the moving member (11) is arranged on the slide rail (43); The hardness detection device further comprises a first driving mechanism (5), which is connected to the moving member (11) to drive the moving member (11) to move along the slide rail (43).

10. The hardness testing device according to any one of claims 3 to 9, characterized in that: The hardness detection device further comprises a second driving mechanism (9), which is connected to the placement platform (3) to drive the placement platform (3) to move along a predetermined direction, wherein the predetermined direction is parallel to the placement plane.

11. The hardness testing device according to claim 9, characterized in that: The movable member (11) includes a slider (111) and a connecting member (112), wherein the slider (111) is arranged on the slide rail (43), and the connecting member (112) extends in a direction away from the fixed plate (41) relative to the slider (111), and a fixing hole is provided on the connecting member (112), and the supporting member (12) is arranged above the connecting member (112), and the sleeve (13) extends into the fixing hole.

12. The hardness testing device according to claim 10, characterized in that: The hardness detection device further comprises a mounting rod (7) and a mounting shell (8), wherein the mounting rod (7) supports the mounting shell (8), and the fixing assembly (4) is fixed on the mounting shell (8).

13. The hardness testing device according to claim 12, characterized in that: The second driving mechanism (9) includes a motor, a lead screw and a nut, wherein the motor is fixed to the outside of the mounting shell (8), the lead screw is arranged inside the mounting shell (8), the lead screw is connected to the motor so that the motor can drive the lead screw to rotate, the nut is arranged on the lead screw, and the nut is connected to the placement platform (3).

14. The hardness testing device according to claim 13, characterized in that: The second driving mechanism (9) further comprises a moving block and a guide rail (6), wherein the moving block is connected to the nut and the moving block is arranged on the guide rail (6).

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